Equivalence principle, de-Sitter space, and cosmological twistors
Maciej Dunajski
Abstract
In this paper, I discuss the impact of the positive cosmological constant on the interplay between the equivalence principle in general relativity, and the rules of quantum mechanics. At the nonrelativistic level, there is an ambiguity in the definition of a phase of a wave function measured by inertial and accelerating observes. This is the cosmological analogue of the Penrose effect, which can also be seen as a nonrelativistic limit of the Unruh effect. The symmetries of the associated Schrödinger equation are generated by the Newton–Hooke algebra, which arises from a nonrelativistic limit of a cosmological twistor space.
Topics & Concepts
PhysicsCosmological constantMathematical physicsEquivalence principle (geometric)General relativityDe Sitter universeDe Sitter spacePhase spaceHomogeneous spaceInertial frame of referenceTheoretical physicsCosmologyEquivalence (formal languages)Massless particleClassical mechanicsQuantum mechanicsUniverseGeometryMathematicsLinguisticsPhilosophyQuantum Electrodynamics and Casimir EffectRelativity and Gravitational TheoryQuantum Mechanics and Applications